I know I sound crazy here so bare with me please.
Dp was sneakily texting a girl he works with around 4 years ago, I found out & it was really upsetting as wasn't just friendly chat.
The girl is a homewrecker! Not just because her and my dp were texting, she has had an affair with a married man who also works there, blatantly flirts with any man with a pulse! I have been told this by several people who work in there (I haven't asked, they just volunteer the info when she comes up in conversation about dp's work).
At the time when her and dp were texting he denied that anything more happened and I forgave him and we moved on, or so I thought.
Found out last year she had an affair with one of my best friends husbands (he used to work there too).
I regularly pick my dp up from work and I see her, she can't even look at me!!
At the weekend myself and dp were with a mutual friend, he works in a different branch of the business but he knows the woman. We were innocently talking about their day to day in work and the woman's name comes up, mutual friend says something like "think you are one of the only people in building she hasn't been with) dp immediately changes the subject, I tell him about them texting 4 years ago and dp again changes the subject!
I have asked dp several times if anything went on between them physically, he denies it, but it just hasn't sat right with me for the last 4 years, I often have anxiety about it because I don't know what went on between them.
I feel I need to know the truth then finally get her out of my head, but anytime I ask dp he just changes the subject.
Aibu? Should I really just forget all this and continue life with seeing her most days and hating her more each day?
Or should I somehow ask him again, demand the truth & take it from there?
Does anyone have any advice please?
I know I sound like I don't trust him, that's not the case, I do & know he would never do anything like it again but I just can't seem to let go of this gut feeling that more went on than just flirty texts!!